Environmental Indicators for Agriculture Volume 1: Concepts and Frameworks 

 - Paris :  OECD  1999 
 - 45  II 
<br/><br/><label>ISBN: </label>9264171347 
<br/><br/><label>Subjects--Topical Terms: </label><br/>UMWELT(21)<br/>Umwelt in der Landwirtschaft und Forstwirtschaft(21x45)
<br/><br/><label>Dewey Class. No.: </label>31.842/1